Corneal endothelial dysfunction poses significant challenges in ophthalmology, leading to corneal edema and vision loss. Traditional treatments, including corneal transplantation, are limited by donor scarcity and potential complications. Nanoparticle-mediated cell delivery emerges as a promising approach for corneal endothelial regeneration, offering targeted and minimally invasive solutions. This comprehensive review provides insights into the role of nanoparticles in enhancing cell survival, integration, and therapeutic efficacy. We discuss the current understanding of corneal endothelial dysfunction, emphasizing the importance of regeneration. Furthermore, we explore the potential implications of nanoparticle-mediated approaches in clinical practice, highlighting opportunities for personalized treatment strategies. Future directions are also discussed, including optimization of nanoparticle design and exploration of combination therapies. Overall, this review elucidates the promising advancements in nanoparticle-mediated cell delivery for corneal endothelial regeneration and underscores the importance of continued research efforts in this evolving field.